Thermostat display system providing adjustable backlight and indicators
First Claim
1. A thermostat for controlling heating and/or cooling equipment, comprising:
- a backlit user display screen for displaying operational information about the heating and/or cooling equipment controlled by the thermostat; and
wherein the thermostat varies an illumination intensity of the backlit user display screen based on a user programmable illumination parameter.
1 Assignment
0 Petitions
Accused Products
Abstract
A user adjustable visual display system and method for a digital thermostat having a backlit user display screen and system operation indicators is provided. The system allows a user to programmatically vary the illumination intensity of the backlit user display screen and the operational indicators. The variance provided includes disabling of the backlight and operational indicators. The system utilizes a variable pulse width modulated (PWM) intensity control for the backlight and indicators. Alternatively, an adjustable current drive illumination control is used to control the backlight and indicators. The selection of the desired intensity is provided via a display settings menu accessed via the user display screen.
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Citations
20 Claims
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1. A thermostat for controlling heating and/or cooling equipment, comprising:
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a backlit user display screen for displaying operational information about the heating and/or cooling equipment controlled by the thermostat; and
wherein the thermostat varies an illumination intensity of the backlit user display screen based on a user programmable illumination parameter. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14)
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15. A thermostat for controlling heating and/or cooling equipment, comprising:
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at least one indicator; and
wherein the thermostat varies an illumination intensity of the at least one indicator based on the user programmable illumination parameter. - View Dependent Claims (16, 17)
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18. A method of controlling illumination intensity of an illuminable element of a thermostat, comprising the steps of:
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receiving a user input to set a desired illumination intensity for the illuminable element; and
varying the illumination intensity of the illuminable element based on the user input. - View Dependent Claims (19, 20)
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Specification